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charset="utf-8" Add a new command 'store_uefi' to the calibrate sysfs file. Writing this command will call cs_amp_set_efi_calibration_data() to save the new data into an EFI variable. This is intended to be used after a successful factory calibration to save the data into EFI. On systems without EFI it will return an error. Signed-off-by: Richard Fitzgerald --- include/sound/cs35l56.h | 1 + sound/soc/codecs/cs35l56-shared.c | 19 +++++++++++++++++-- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h index 4ed738615021..b3770285261c 100644 --- a/include/sound/cs35l56.h +++ b/include/sound/cs35l56.h @@ -314,6 +314,7 @@ struct cs35l56_base { bool can_hibernate; bool cal_data_valid; s8 cal_index; + u8 num_amps; struct cirrus_amp_cal_data cal_data; struct gpio_desc *reset_gpio; struct cs35l56_spi_payload *spi_payload_buf; diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-s= hared.c index dc6e49e3421a..27fb2f9b83c5 100644 --- a/sound/soc/codecs/cs35l56-shared.c +++ b/sound/soc/codecs/cs35l56-shared.c @@ -1101,8 +1101,8 @@ static int cs35l56_perform_calibration(struct cs35l56= _base *cs35l56_base) ssize_t cs35l56_calibrate_sysfs_store(struct cs35l56_base *cs35l56_base, const char *buf, size_t count) { - static const char * const options[] =3D { "factory" }; - int ret; + static const char * const options[] =3D { "factory", "store_uefi" }; + int num_amps, ret; =20 if (!IS_ENABLED(CONFIG_SND_SOC_CS35L56_CAL_SYSFS_COMMON)) return -ENXIO; @@ -1113,6 +1113,21 @@ ssize_t cs35l56_calibrate_sysfs_store(struct cs35l56= _base *cs35l56_base, if (ret < 0) return ret; break; + case 1: + if (!cs35l56_base->cal_data_valid) + return -ENODATA; + + num_amps =3D cs35l56_base->num_amps; + if (num_amps =3D=3D 0) + num_amps =3D -1; + + ret =3D cs_amp_set_efi_calibration_data(cs35l56_base->dev, + cs35l56_base->cal_index, + num_amps, + &cs35l56_base->cal_data); + if (ret < 0) + return ret; + break; default: return -ENXIO; } --=20 2.47.3